Software Engineer Jobs in Wales, United Kingdom

E24S department at Rolls-Royce develops and verifies Electronic Engine Control system software for civil aero engine programmes. The Software Engineer designs, implements and tests software components, translates high‑level requirements into validated designs and analyses verification results.

Software Engineering at Gemba Advantage builds secure, user‑centred digital products for critical public sector organisations across the UK. Senior and Principal Software Engineers design and deliver cloud‑native services, set engineering standards and mentor teams while working directly with customers on complex problems. Cheltenham, hybrid (up to 4 days onsite), security clearance required, relocation assistance available.

Join Graphcore's Software Infrastructure team as a Build Engineer, shaping tools that streamline ML software delivery. You’ll design and maintain internal tooling for building, testing, and integrating the machine‑learning stack, ensuring reproducible, secure builds across distributed HPC platforms.

As a Staff Software Engineer on Coder’s Agentic Engineering team, you’ll shape the systems behind Coder’s agentic development experience, working across the agent harness, integrations, and workflows that connect agents with real development environments. You’ll stay hands-on while setting technical direction—designing and building production systems in Go (with React and TypeScript where needed), evolving agent execution, tool use, context management, streaming, and long-running workflows, and

Platform Engineering team at Bet365 focuses on building reliable, observable services for high‑volume online gambling. The Software Engineer, Site Reliability Engineering enhances system reliability and performance through automation, instrumentation and AI‑driven observability, while actively participating in incident resolution and post‑mortems.

Coder’s Agentic Engineering team builds the systems behind Coder’s agentic development experience, connecting agents with real development environments. As a Staff Software Engineer, you’ll set technical direction for the agent harness, integrations, and workflows while staying hands-on—designing and building production systems in Go, evolving agent execution and tool use, and leading complex projects from ambiguity to production.

Platform Engineering at Bet365 focuses on building resilient, high‑performance services for a global online gambling platform. As a Site Reliability Engineer you will enhance system reliability and observability using software engineering, implement instrumentation with OpenTelemetry, and leverage AI tools and LLM platforms to reduce toil and drive autonomous operations.

SDK Quality Engineering team at PlayStation Global builds confidence in SDK solutions across platforms. The Senior Software Engineer creates and improves CI/CD pipelines, Python automation, and testing frameworks to embed quality early in development.

Quality Engineering team building the quality infrastructure that enables developers to deliver reliable software at scale. Designs and enhances automated testing frameworks, CI/CD pipelines, and AI‑driven test automation solutions across a cloud‑native platform.

Public Cloud Engineering – Infrastructure Platforms at J.P. Morgan builds market‑leading, secure, and scalable cloud services for the firm. As a Lead Software Engineer you will design and deliver high‑quality production code, drive adoption of AI‑assisted development tools, and mentor the team on responsible AI use.

Reinvention Deployment Engineering pods at Accenture build the largest Forward Deployed Engineer capability, embedding AI platform expertise directly inside client enterprises. The role leads end‑to‑end AI platform deployments, owns programme‑level outcomes, architects full‑stack solutions, and shapes AI adoption strategy for C‑suite stakeholders.

Silicon Engineering Documentation Tools team at Apple builds a platform of CLIs, UIs, and APIs that enable silicon engineers to author and verify hardware specifications for Apple’s industry‑leading chips. The role designs, develops, and optimizes these tools, troubleshoots performance bottlenecks in a JVM‑based toolchain, and collaborates with documentation support to train and guide silicon designers.

bet365 is a leading online gambling company seeking a Site Reliability Engineer to enhance system reliability, observability, and performance through a strong engineering approach. You will implement solutions like OpenTelemetry instrumentation, build automation and tooling, and leverage AI/LLM platforms to reduce toil and optimize system health while collaborating across functions to embed reliability best practices throughout the SDLC.

Global Liquidity and Account Solutions team in Payments Technology at JPMorgan Chase builds state‑of‑the‑art liquidity calculation systems. The Software Engineer III designs, develops and maintains robust Java‑based test automation frameworks, collaborates with global stakeholders, and supports junior engineers while ensuring high‑quality, secure releases.

Engine by Starling seeks a Staff Software Engineer to lead complex projects, drive technical excellence, and shape the future of its SaaS banking platform.

Apple’s Sales Engineering team builds systems to enhance the global store experience and support channel partners. As an Early Careers Full Stack Engineer, you will develop backend services and frontend experiences for products like DCOTA and StoreFront.

Engine by Starling is a fintech SaaS platform powering banks worldwide. The Staff Software Engineer (Team Lead) will coach and mentor a high‑performing backend team, lead complex projects from inception to production, and shape the platform’s architecture and tooling.

The Triage Intelligence and Debug Engineering team at Apple ensures OS stability for over two billion devices by root-causing crashes and panics. This Software Engineer role involves investigating system-level failures, building automation pipelines, and applying ML techniques to improve reliability.

Pay Sustainability Engineering team at Perk builds reliable, scalable payments and billing ecosystems. The senior engineer leads platform reliability initiatives, architects sustainable system improvements, and mentors across squads.

This is a part-time Jobshare Sr Lead Software Engineer – Site Reliability Engineer role at JPMorgan Chase within the Commercial & Investment Bank – Markets – Commodities Technology, based in London or Bournemouth, United Kingdom. The role sets the SRE vision, strategy, and operating model to drive reliability, resilience, and better end-user experience across production support teams.